Games like The First Step
Games like The First Step include Librarian: Tidy Up the Arcane Library!, DAVE THE DIVER, A Hat in Time, Firewatch, and Frog Detective 1: The Haunted Island. We matched them by the tags players give The First Step on Steam (Collectathon, Casual, Exploration, Walking Simulator, and Top-Down): closest matches first, and among equally close ones the better-known games.

Librarian: Tidy Up the Arcane Library!
Shared: Collectathon · Casual · Relaxing

DAVE THE DIVER
Shared: Casual · Exploration · Relaxing

A Hat in Time
Shared: Collectathon · Funny · Exploration

Firewatch
Shared: Walking Simulator · Exploration · Singleplayer

Frog Detective 1: The Haunted Island
Shared: Casual · Funny · Comedy

Slime Rancher
Shared: Exploration · Singleplayer · Funny

Spirit of the North
Shared: Exploration · Casual · Walking Simulator

The Stanley Parable
Shared: Walking Simulator · Comedy · Funny

Frog Detective 3: Corruption at Cowboy County
Shared: Casual · Funny · Comedy

ABZU
Shared: Exploration · Relaxing · Casual

Thank Goodness You're Here!
Shared: Exploration · Casual · Funny

Baby Steps
Shared: Walking Simulator · Exploration · Casual

Placid Plastic Duck Simulator
Shared: Collectathon · Casual · Relaxing

Submerged
Shared: Exploration · Walking Simulator · Relaxing

A Short Hike
Shared: Exploration · Relaxing · Casual

Turnip Boy Commits Tax Evasion
Shared: Exploration · Top-Down · Funny

Seal World
Shared: Casual · Exploration · Funny

Disney Dreamlight Valley
Shared: Exploration · Relaxing · Casual

Psychonauts
Shared: Comedy · Funny · Singleplayer

Garry's Mod
Shared: Casual · Funny · Singleplayer

Tiny Terry's Turbo Trip
Shared: Exploration · Funny · Casual

Jazzpunk: Director's Cut
Shared: Exploration · Funny · Comedy

Funi Raccoon Game
Shared: Casual · Collectathon · Exploration

Frog Detective 2: The Case of the Invisible Wizard
Shared: Casual · Funny · Comedy

